(Property) Array<T>.map: (<U>(callbackfn: (value: never, index: number, array: never[]) =>

Question

(Property) Array<T>.map: (<U>(callbackfn: (value: never, index: number, array: never[]) =>

U, thisArg?: any) => U[]) | (<U>(callbackfn: (value: IBlock, index: number, array: IBlock[]) => U, thisArg?: any) => U[])
Calls a defined callback function on each element of an array, and returns an array that contains the results.

@param callbackfn — A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.

@param thisArg — An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.

#frontend #javascript #programming #react.js #russian

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01.07.2020

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アレクサンダー・バキマトフ · Accepted Answer

アレクサンダー・バキマトフ

это описание .map, сделай скрин ошибки ТСа прост

0

01.07.2020

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(Property) Array<T>.map: (<U>(callbackfn: (value: never, index: number, array: never[]) =>

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